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(11)

EP 1 060 535 A1

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(43) Date of publication: 20.12.2000 Bulletin 2000/51 (21) Application number: 99905985.0 (22) Date of filing: 24.02.1999

(51) International Patent Classification (IPC)7: H01M 8/10, H01M 8/04 (86) International application number: PCT/CA9900/134 (87) International publication number: WO 9944/253 (02.09.1999 Gazette 1999/35)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 25.02.1998 DE 19807876 12.11.1998 US 191049 (71) Applicant: BALLARD POWER SYSTEMS INC. Burnaby,British Columbia V5J 5J9 (CA)	(72) Inventors: MÜLLER, Jens D-89134 Blaustein (DE) URBAN, Peter D-89081 Ulm (DE) WEZEL, Regina D-89075 Ulm (DE) COLBOW, Kevin, Michael North Vancouver, British Columbia V7P 1K (CA) ZHANG, Juijun Richmond, British Columbia V7A 1J2 (CA) (74) Representative: Beyer, Andreas, Dr.  Wuesthoff & Wuesthoff,Patent- und Rechtsanwälte,Schweigerstrasse 2 81541 München 81541 München (DE)